Differential thermostats-Delta

Delta is a specialized device for managing the heat exchange between a solar collector and a water heater. Application: solar collector and boiler; fireplace with combustion chamber and boiler; boiler (with solid fuel, gas, electric heater) and boiler;

Differential thermostat - boiler heating The main purpose is to transfer the thermal energy generated in the heat source (collector) to the consumer (boiler). The pump is switched on when the difference between the temperature of the collector and the boiler is greater than the set point (Coll – Boil > ΔT) and the temperature of the collector is high enough (Coll > CollMin) and the temperature of the boiler is below the set point (Boil < BoilSet) . Otherwise, the pump is turned off because the heat exchange conditions are not met. The hysteresis parameter HYS is added/subtracted to each on and off condition. For example, with a set hysteresis of 2oC and ΔT = 10oC, the pump will turn on at a difference of 10 + 2 = 12oC, and will turn off at 10 – 2 = 8oC. Circulation pump blocking protection In case the pump is not activated for 24 hours, the thermostat will force it on for 20 seconds to prevent it from blocking. Installation tSol Delta is suitable for DIN rail mounting. It should only be installed in dry enclosed spaces and should not be located where it will be exposed to strong electromagnetic fields.

Controller with three-digit LED display and touch buttons for setting;

Thermal probe for the collector with high-temperature silicone cable NTC (-40 .. 125oC) or optionally Pt1000 (-40 .. 200oC);

Thermoprobe NTC (-40 .. 125oС) for the boiler - for installation at the level of the coil;

User manual/wiring diagram/warranty card (2-year warranty);